So i have had a lot of questions on how to put back the original Assembly-Csharp.dll. Because they forgot to back up theres so i will just release a tut on how to do such thing with out redownloading the whole game
Make sure to delete the modded Assembly-Csharp.dll
1. Open steam make sure you are signed in and can see 7 days to die as in the picture below
2. Right click on 7 days to die as in the picture below
3. Click properties as seen in the picture below
4. This screen should appear as in the picture below
5. Click local files as seen in picture below
6. Click verify integrity of game cache... as seen in the picture below
7. If all went well if you see this msg or another that says files were missing as seen in the picture below